Evidence map›Paper›PMID 18493044›Full record

ArticleGenetics2008

On the evolution and expression of Chlamydomonas reinhardtii nucleus-encoded transfer RNA genes.

Valérie Cognat, Jean-Marc Deragon, Elizaveta Vinogradova, Thalia Salinas, Claire Remacle, Laurence Maréchal-Drouard

Open access · greenAbstract readComparative Study
In one paragraph

Article in Genetics, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed
1.2field-weighted citation impact, top 21% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

22 citing papers in PubMed, 34 citations in OpenAlex.

  1. Review
  2. Multilevel genomic constraints shape nuclear tRNA gene organization in plants.The Plant journal : for cell and molecular biology · 2026
    Article
  3. Review
  4. Article
  5. Article
  6. Evidence of multifaceted functions of codon usage in translation within the model beetle Tribolium castaneum.DNA research : an international journal for rapid publication of reports on genes and genomes · 2019
    Article
  7. Article
  8. Article
  9. Metabolic Labeling and Profiling of Transfer RNAs Using Macroarrays.Journal of visualized experiments : JoVE · 2018
    Article
  10. Article
  11. Article
  12. Article
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  15. Article
  16. Article
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  18. Mutation bias is the driving force of codon usage in the Gallus gallus genome.DNA research : an international journal for rapid publication of reports on genes and genomes · 2011
    Article
  19. Article
  20. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

6 authors at 3 institutions in 2 countries.

Valérie CognatInstitut de Biologie Moléculaire des Plantes, Unité Propre de Recherche 2357, Conventionnée avec l'Université Louis Pasteur (Strasbourg 1), Centre National de la Recherche Scientifique, 67084 Strasbourg Cedex, France.
Jean-Marc Deragon
Elizaveta Vinogradova
Thalia Salinas
Claire Remacle
Laurence Maréchal-Drouard
Institut de Biologie Moléculaire des Plantes · FRLaboratoire Génome et Développement des Plantes · FRUniversity of Liège · BE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

In Chlamydomonas reinhardtii, 259 tRNA genes were identified and classified into 49 tRNA isoaccepting families. By constructing phylogenetic trees, we determined the evolutionary history for each tRNA gene family. The majority of the tRNA sequences are more closely related to their plant counterparts than to animals ones. Northern experiments also permitted us to show that at least one member of each tRNA isoacceptor family is transcribed and correctly processed in vivo. A short stretch of T residues known to be a signal for termination of polymerase III transcription was found downstream of most tRNA genes. It allowed us to propose that the vast majority of the tRNA genes are expressed and to confirm that numerous tRNA genes separated by short spacers are indeed cotranscribed. Interestingly, in silico analyses and hybridization experiments show that the cellular tRNA abundance is correlated with the number of tRNA genes and is adjusted to the codon usage to optimize translation efficiency. Finally, we studied the origin of SINEs, short interspersed elements related to tRNAs, whose presence in Chlamydomonas is exceptional. Phylogenetic analysis strongly suggests that tRNA(Asp)-related SINEs originate from a prokaryotic-type tRNA either horizontally transferred from a bacterium or originally present in mitochondria or chloroplasts.

Indexed as

Evolution, MolecularPhylogenyAnimalsBase PairingBase SequenceBlotting, NorthernChlamydomonas reinhardtiiCodonComputational BiologyLikelihood FunctionsModels, GeneticMultigene FamilyReverse Transcriptase Polymerase Chain ReactionRNA, TransferShort Interspersed Nucleotide ElementsCodonRNA, Transfer

Identifiers

PMID18493044
PMCPMC2390591
OpenAlexW2147090099

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.